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Proceedingsof the 10th International Workshop on Large-Scale Integration of Wind Power into

Power Systems as well as on Transmission Networks for Offshore Wind Power Plantspublished in 2011 by

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Welcome to the 10th International Workshop on Large-Scale Integration of Wind Power into Power Systems as well as on Transmission Networks for Offshore Wind Power Plants

It is a great pleasure to welcome you to the 10th edition of the International Workshop on Large-Scale Integration of Wind Power into Power Systems as well as on Transmission Networks for Offshore Wind Power Plants in Aarhus, Denmark.

With its 10th edition, the Wind Integration Workshop is celebrating a jubilee this year. The first edition of the workshop was held 11 ½ years ago at the Royal Institute of Technology, Stockholm, Sweden in March 2000.

The focus of the first edition of the workshop was on HVDC transmission technology, including HVDC transmission networks. Over the past years the key topics changed continuously, reflecting the shifting focuses in the area of wind integration, for instance modelling issues, national grid integration experience, market issues as well as grid code issues became key topics of the workshop. This way, the workshop developed into a renowned international platform for discussing the subject of grid integration of wind power into the existing power systems. By the way, this year HVDC transmission solutions have emerged again as one of the key topics of the workshop.

The general purpose of this workshop, however, has not changed over the past years: It is to get researchers, economists and practicing engineers from different fields relating to wind power and transmission systems to exchange their knowledge and discuss their experience in the area of large-scale integration of wind power into power systems and transmission networks for offshore wind farms. The emphasis of this workshop is again on both theoretical discussion and practical applications.

Because of the high interest in the workshop proceedings, we have submitted the proceedings from the past years to international libraries and organisations who operate citation index systems such as the (i) FIZ - Fach Informations Zentrum Karlsruhe, (ii) Elsevier, (iii) ETDE, (iV) Reuters, (V) Compendex, (Vi) ThomsonCitationIndex. We will do the same with this year’s proceedings, so that the proceedings become easier available for academia and industry world-wide.

The 10th Wind Integration Workshop forms the core of a whole Renewable Energy Week this year in Aarhus, Denmark with a number of related events such as Tutorials for the Solar Integration Workshop (October 23, 2011) and Tutorials on Wind Turbine Modelling (October 24, 2011), the 1st Workshop on the Integration of Solar Power into Power Systems (October 24, 2011), the Fifth Workshop on Best Practice in the Use of Short-term Forecasting of Wind Power (October 24th, 2011), the dedicated TSO-Energinet.dk-day (October 27, 2011) and two different field trips (October 27 and 28, 2011).

This workshop would not be possible without our sponsors and we like to thank them for their support. Our Gold Sponsors this year are: the engineering company ALSTOM Grid (France), the energy group DONG energy (Denmark) as well as the wind turbine manufacturers Enercon (Germany) and Vestas (Denmark), our Giga Sponsors: the engineering company ABB (Switzerland/Sweden) as well as the consulting and software company DIgSILENT (Germany) and Siemens Wind (Denmark). In addition, the workshop is supported by the Utility Wind Integration Group UWIG (USA). And above all, we would like to thank the Danish TSO Energinet.dk for its general support and local assistance.

We would also like to thank all those who supported the organizers of this workshop: Uta Betancourt and Jörg Braun (all Energynautics, Germany), Antje Orths (Energinet.dk) and the International Advisory Committee.

Have an inspiring stay in Aarhus and a fruitful workshop!

Thomas Ackermann energynautics

Table of Contents

Session 1: Keynote Session & Panel 1 09:00 – 10:55 / 25 October 2011 / Scandia Ballroom / Discussion leader: Thomas Ackermann,

(Energynautics, Germany) Anne Højer Simonsen (Deputy Permanent Secretary, Ministry of Climate and Energy of Denmark)

Torben Glar Nielsen (Director of the Danish TSO Energinet.dk, Denmark)

Session 2a: Country Studies - I 3 11:25 – 13:00 / 25 October 2011 / Suecia / Discussion leader: T.B.A. Western Wind and Solar Integration Study D. Lew (NREL, USA), R. Piwko, G. Jordan, N. Miller (GE Energy, USA), K. Clark (NREL, USA), L. Freeman (GE Energy, USA), M. Milligan (NREL, USA)

Managing Wind Penetrations of 50% and higher A. Rogers, J. O’Sullivan, P. Coughlan (EirGrid, Ireland), A. Kennedy (SONI, Ireland)

Limits to Integration of Renewable Energy Sources. The Spanish Experience and Challenges J. Revuelta (REE, Spain)

Voltage Stability Analysis of the Eastern Danish Power System with a High Share of Wind Energy N. Qin, V. Akhmatov, T. Lund, H. Abildgaard, M. K. Jørgensen (Energinet.dk, Denmark)

Session 2b: Modeling - I 33 11:25 – 13:00 / 25 October 2011 / Room Dania / Discussion leader: T.B.A. Overview, Status and Outline of the New IEC 61400 -27 - Electrical Simulation Models for Wind Power Generation P. Sørensen (Risø DTU, Denmark), B. Andresen (Siemens Wind Power, Denmark), J. Fortmann (REpower, Germany), K. Johansen (Energinet.dk, Denmark), P. Pourbeik (EPRI, USA)

Simplified Model of DFIG M. Mata Dumenjó, J. Sánchez Navarro, V. Casadevall Benet, J. Gil Cepeda, L. García Caballero (Alstom Wind, Spain)

Simplified Model of Wind Turbines with Doubly-Fed Induction Generator A. Timbus, P. Korba (ABB, Switzerland), A. Vilhunen, G. Pepe, S. Seman, J. Niiranen (ABB Oy, Finland)

Towards a Cross-Platform Binary Interface for Time-Domain Simulation Models R. Hendriks (Siemens, Germany/TU Delft, the Netherlands), J. Fortmann, M. Bley, L. Cai (REpower, Germany), O. Ruhle (Siemens, Germany), B. Kulicke (Ingenieurbüro Kulicke, Germany)

Session 2c: Wind Forecasting 57 11:25 – 13:00 / 25 October 2011 / Room Nortvegia / Discussion leader: T.B.A. Offshore Wind Power Prediction in Critical Weather Conditions N. Cutululis (Risø DTU, Denmark), N. Detlefsen (Energinet.dk, Denmark), P. Sørensen(Risø DTU, Denmark)

Increasing the Competition on Reserve for Balancing Wind Power with the help of Ensemble Forecasts J. U. Jørgensen, C. Möhrlen (WEPROG, Denmark)

An Overview of Wind Power Forecast Types and their Use in Large-scale Integration of Wind Power H. A. Nielsen, T. S. Nielsen (ENFOR, Denmark), H. Madsen (DTU, Denmark)

Future Wind Power Forecast Errors, Need for Regulating Power, and Costs in the Swedish System F. Carlsson (Vattenfall R&D, Sweden)

The Distribution of Wind Power Forecast Errors from Operational Systems B.-M. Hodge, E. Ela, M. Milligan (NREL, USA)

Session 3a: Country Studies - II 89 14:00 – 15:40 / 25 October 2011 / Room Suecia / Discussion leader: T.B.A. Wind Integration – A Survey of Global Views of Grid Operators L. Jones (Alstom Grid, USA), C. Clark (US Department of Energy, USA)

Large Scale Renewable Energy Integration: Recent Experiences in the USA T. Gentile, D. J. Morrow, S. Mukherjee (Quanta Technology, USA), B. Kruimer (Quanta Technology, the Netherlands)

Wind Power Integration and Grid Code Issues in the Italian Power System G. Giannuzzi (Terna, Italy), O. Lamquet, S. Pasquini, M. Pozzi, F. Pretolani (CESI, Italy), C. Sabelli, C. Trenta, R. Zaottini (Terna, Italy)

Wind Curtailment Strategies and Applications in Wind Farms Cluster Areas Y. Huang, C. Liu (China Electric Power Research Institute [CEPRI], China)

Session 3b: Testing and Validation 115 14:00 – 15:40 / 25 October 2011 / Room Dania / Discussion leader: T.B.A. Wind Farm Simulation and Certification of its Grid Code Compliance - a Review of Lessons Learned from the German Experiences F. Kalverkamp, M. Meuser, B. Schowe-von der Brelie, J. Stüeken (FGH, Germany)

Wind Power Plants Validation and Performance Tests - Hydro-Québec Experience M. Asmine, C. Bélanger (Hydro-Québec, Canada)

Experiences in Simulating and Testing Coordinated Voltage Control Provided by Multiple Wind Power Plants T. Arlabán (Acciona Windpower, Spain), J. Peiró (REE, Spain), O. Alonso (Acciona Windpower, Spain), R. Rivas (REE, Spain), D. Ortiz (Acciona Windpower, Spain), G. Quiñonez-Varela, P. Lorenzo (Acciona Energy, Spain)

Harmonic Generation and Mitigation by Full-Scale Converter Wind Turbines: Measurements and Simulations L. H. Kocewiak, J. Hjerrild (DONG Energy, Denmark), C. L. Bak (Aalborg University, Denmark)

Session 3c: HVDC 145 14:00 – 15:40 / 25 October 2011 / Room Nortvegia / Discussion leader: Peter W. Christensen,

Vestas, DK Ancillary Services and Operation of Multi-terminal HVDC Systems Y. Phulpin (INESC, Portugal), D. Ernst (University of Liège, Belgium)

Optimizing the Performance of a VSC HVDC Control System M. C. Nguyen, K. Rudion, Z. A. Styczynski (Otto-von-Guericke-University Magdeburg, Germany)

LCC Based Multiterminal HVDC for Integration of Large Scale Wind Power X. Yang, C. Yue, D. Yao (ABB China, China)

Power Transmission and Large Scale Wind Farm Integration using Multi-Terminal DC Systems J. Rafferty, L. Xu (Queen's University Belfast, United Kingdom)

Standardization of VSC-HVdc Interface with Offshore Wind Generation E. Larsen (GE Energy, USA), G. Drobnjak (GE Energy, Germany), H. Elahi (GE Energy, USA)

Session 4a: Power System Balancing - I 175 16:00 – 18:10 / 25 October 2011 / Room Suecia / Discussion leader: T.B.A. Variability of Load and Net Load in Case of Large Scale Distributed Wind Power H. Holttinen, J. Kiviluoma (VTT, Finland), A. Estanqueiro (LNEG, Portugal), E. Gómez Lázaro (University Castilla-La Mancha, Spain), B. Rawn (TU Delft, the Netherlands), J. Dobschinski (Fraunhofer IWES, Germany), P. Meibom (Risø DTU, Denmark), E. Lannoye (University College Dublin, Ireland), T. Aigner (NTNU, Norway), Y.-H. Wan, M. Milligan (NREL, USA)

Controlling Imbalance Risk of Wind Power with a Dynamic Spinning Reserve Margin W. de Boer, M.Duvoort, G. Dekker (KEMA, the Netherlands)

Risk Coordination in the Computation of Operating Balancing Reserves for Wind Power Integration N. Menemenlis, M. Huneault (IREQ/Hydro-Québec, Canada), A. Robitaille (Hydro-Québec, Canada)

The Impact of Alternative Dispatch Intervals on Operating Reserve Requirements for Variable Generation M. Milligan, J. King, B. Kirby (NREL, USA), S. Beuning (Xcel Energy, USA)

Cross Border Renewable Energy Trade between Baja California and California M. A. Avila Rosales (CFE Mexico [retired], Mexico)

Session 4b: Offshore Grid Connection - I 209 16:00 – 18:30 / 25 October 2011 / Room Dania / Discussion leader: T.B.A. The First Three 800 MW Wind Park Grid Connection Projects with XLPE HVDC Cables D. Zhang, T. Lebioda, M. Koochack-Zadeh, J. Jung (TenneT Offshore, Germany)

400 MW Grid Connection to the Anholt Offshore Wind Farm in a Single 220 kV Cable System T. Kvarts (Energinet.dk, Denmark), M. Bailleul (General Cable, France), J. M. Domingo (General Cable, Spain), Y. Douima, F. Petitot (General Cable, France), A. Jensen , S. T. Salwin (nkt cables, Denmark)

Kriegers Flak - Challenges and Status of the first European "Two-in-One Project" P. Jørgensen, M. L. Lundø (Energinet.dk, Denmark)

Conceptual Study of an Offshore Grid in the Norwegian Sector of the North Sea J. Hang, Ø. Rui, K. Karijord, M. Theisen (Statnett, Norway), B. Johansson (Solvina, Sweden), O. J. Bjerknes (Aker Solutions, Norway)

OffshoreGrid: Techno-Economic Model for Future Offshore Electricity Transmission P. Kreutzkamp, J. De Decker, N. Picot (3E, Belgium)

Testing Constraints and Opportunities for Offshore Renewable Energy: Strategic Development of Offshore Networks for Interconnection and Market Access G. Bathurst (TNEI Services, United Kingdom), K. Bell (University of Strathclyde, United Kingdom)

Session 4c: Modeling - II 239 16:00 – 18:10 / 25 October 2011 / Room Nortvegia / Discussion leader: T.B.A. Short Circuit Current Calculation for Wind Turbines with Doubly-Fed Induction Generator (DFIG) System: Problems and Solution Approaches V. Dinkhauser, L. Cai (REpower, Germany), S. Bolik (REpower UK, United Kingdom)

A Universal Methodology for Specification and Modeling of Wind Turbine Short-Circuit Current Contribution Characteristics R. Walling, E. Gursoy (GE Energy, USA)

A Study of Collector System Grounding Design with Type-4 Wind Turbines at the Le Plateau Wind Power Plant in Canada J.-N. Paquin (BBA, Canada), I. Jaskulski, J. Cassoli (Enercon, Germany), M. Fecteau (Hydro-Québec/TransÉnergie, Canada), C. Murray (Invenergy, USA)

Application of Real Time Digital Simulation in Modeling Wind Turbines with Reduced and Full Converter Schemes K. Protsenko, B. Badrzadeh (Vestas Technology, Denmark), P. F. Mayer (Vestas Technology, Singapore), Z. Luo (Vestas Americas, USA)

Real-Time Simulation of Wind Power Plants with VSC-HVDC Link for Network Integration Studies P. Le-Huy, O. Tremblay, R. Gagnon, P. Giroux (IREQ/Hydro-Québec, Canada)

Session 5a: Market Issues 271 08:30 – 10:40 / 26 October 2011 / Room Suecia / Discussion leader: T.B.A. Operational Management of Intraday and Balancing Markets - a Survey J. Andersen (Aarhus University, Denmark), N. Detlefsen (Energinet.dk, Denmark)

Electricity Market Design Options and Balancing Rules in Offshore Grids S. T. Schröder (Risø DTU, Denmark), L. Sundahl (Energinet.dk, Denmark)

Frequency Control Ancillary Service Requirements with Wind Generation - Australian Projections J. Riesz, F.-S. Shiao, J. Gilmore, D. Yeowart, A. Turley, I. Rose (ROAM Consulting, Australia)

Are Integration Costs and Tariffs Based on Cost-Causation? M. Milligan, E. Ela, B.-M. Hodge (NREL, USA), B. Kirby(Consultant to NREL, USA), D. Lew (NREL, USA), C. Clark, J. DeCesaro, K. Lynn (US Department of Energy, USA)

Stationary and Dynamic Offshore Power System Operation Planning K. Rudion (Otto-von-Guericke University Magdeburg, Germany), A. Orths, H. Abildgaard, P. B. Eriksen, K. Søgaard (Energinet.dk, Denmark), M. Gurbiel (Otto-von-Guericke University Magdeburg, Germany), M. Powalko (Energinet.dk, Denmark), A. Styczynski (Otto-von-Guericke University Magdeburg, Germany)

Session 5b: Future High Penetration Aspects 305 08:30 – 10:40 / 26 October 2011 / Room Dania / Discussion leader: T.B.A. Danish Fossil Independent Energy System 2050 - From Strategic Investigations to Intra-Hour Simulation of Balancing Issues A. B. Hansen, A. Orths, K. Falk, N. K. Detlefsen (Energinet.dk, Denmark)

Time to implement TSO 2.0 J. Warichet, J.-J. Lambin (Elia, Belgium), O. Bronckart (Coreso, Belgium), C. Druet, W. Michiels (Elia, Belgium)

Transition to a Fully Renewable Power System in EuropeG. B. Andresen (Aarhus University, Denmark), D. Heide (Johann Wolfgang Goethe University Frankfurt, Germany), M. G. Rasmussen, M. Greiner (Aarhus University, Denmark)

The Importance of Grid Expansion in a High Wind Penetration Scenario for Europe until 2050E. Tröster, L. Glotzbach, T. Ackermann (Energynautics, Germany), M. Fürsch, C. Jägemann, S. Nagl, S. Hagspiel, D. Lindenberger (EWI, Germany)

HVDC Grids for Continental-wide Power BalancingM. Callavik, J. Åhström (ABB Grid Systems, Sweden), C. Yuen (ABB Corporate Research, Switzerland)

Session 5c: Offshore Grid Connection - II 339 08:30 – 10:40 / 26 October 2011 / Room Nortvegia / Discussion leader: T.B.A. Validation of a Switching Operation in the External Grid of Gunfleet Sand Offshore Wind Farm by Means of EMT Simulations Arana, J. Okholm (DONG Energy, Denmark), J. Holbøll (DTU, Denmark)

Transient Studies in Large Offshore Wind Farms, Taking Into Account Network/Circuit Breaker Interaction J. Glasdam (DONG Energy, Denmark), C. L. Bak (Aalborg University, Denmark), J. Hjerrild, I. Arana (DONG Energy, Denmark)

Overvoltages During Energisation of an Offshore Wind FarmF. Moore (Cardiff University, United Kingdom), R. King (Alstom Grid, United Kingdom), A. Haddad, H. Griffiths (Cardiff University, United Kingdom), M. Osborne (National Grid, United Kingdom), N. Jenkins (Cardiff University, United Kingdom)

Voltage Control in Offshore Wind Farms Using Switched Compensation Elements (MSCs, MSRs) Together with the Reactive Power Capability of the Wind Turbine Generators A. Handschick, A. J. Hernandez, F. Schettler, B. Strobl (Siemens, Germany)

Power-Hardware-In-the-Loop Test of VSC-HVDC connection for Off-shore Wind Power PlantsR. Sharma (Siemens Wind Power, Denmark), S. T. Cha, Q. Wu, T. W. Rasmussen (DTU, Denmark), K. H. Jensen (Siemens Wind Power, Denmark), J. Østergaard (DTU, Denmark)

Session 6a: Smart Grid and Wind Power – I 371 11:00 – 13:00 / 26 October 2011 / Room Suecia / Discussion leader: T.B.A. The Role of Wind Turbines in Smart Distribution Systems P. Lund (Energinet.dk, Denmark), N. Martensen, T. Ackermann (Energynautics, Germany), J. Harrell (Spirae, USA)

Potential of the Flexibility of Heat Pump Operation for Wind Power Integration G. Papaefthymiou, B. Hasche, C. Nabe (Ecofys, Germany)

Using Dynamic Line Rating to minimize Curtailment of Wind power Connected to Rural Power Networks P. Schell (Ampacimon, Belgium), J.-J. Lambin (Elia, Belgium), B. Godard, H.-M. Nguyen, J.-L. Lilien (University of Liège, Belgium)

Optimizing the Performance of Renewable Sources Using Virtual Renewable Power Plants L. Rodrigues, A. Estanqueiro (LNEG, Portugal)

Session 6b: Modeling III 393 11:00 – 13:00 / 26 October 2011 / Room Dania / Discussion leader: T.B.A. Loss of (Angle) Stability of Wind Power Plants - The Underestimated Phenomenon in Case of Very Low Short Circuit Ratio V. Diedrichs (Jade Hochschule, Germany), A. Beekmann, S. Adloff (Enercon, Germany)

On Impact of Voltage Control Characteristics of Wind Power Plants on Damping of Electromechanical Oscillations T. Rauhala, A.-J. Nikkilä (Fingrid Oyj, Finland)

Improving the Methodology to Model Reservoir Hydro Power in a Unit Commitment Model Using Simplified RiverSystem Constraints E. Rinne, J. Kiviluoma (VTT, Finland)

New Method for Evaluation of the Impact on Harmonic Disturbance from Wind Turbines equipped with Frequency Converters N. Goldenbaum, B. Andresen (Siemens Wind Power, Denmark)

Simulation of Offshore Wind Farm Integrated into Power Grid Using VSC HVDC System H. Guo, C. M. Nguyen, K. Rudion, Z. A. Styczynski (Otto-von-Guericke-University Magdeburg, Germany)

Session 6c: Offshore Grid Connection - III 423 11:00 – 13:00 / 26 October 2011 / Room Nortvegia / Discussion leader: Lawrence E. Jones,

Alstom Grid, USA Experience with Connecting Five UK Round 2 Offshore Wind Farms to the Grid P. Glaubitz (Siemens, Germany), J. Finn, A. Shafiu (Siemens, United Kingdom)

Risk Based Approach for Offshore Grid DevelopmentT. Langeland, C. Greiner (Det Norske Veritas, Norway), C. Öhlen (STRI, Sweden)

Dynamics and Control of Multi-terminal HVDC Systems for Off-shore Wind Farm IntegrationE. Ciapessoni, D. Cirio, A. Gatti, A. Pitto (RSE, Italy)

Application of Over-current Relay in Offshore Wind Power Plant Grid with VSC-HVDC Connection S. K Chaudhary, R. Teodorescu (Aalborg University, Denmark), P. Rodriguez (TU of Catalonia, Spain), P. C. Kjær (Vestas Technology, Denmark)

Determination of Hotspots in Submarine Power Cables in Offshore Wind Farms using Distributed Temperature Sensing Technology S. V. Kjær, D. Schwartzberg, W. Christiansen, M. Z. Zinglersen (DONG Energy, Denmark)

Session 7a: Frequency Control and Inertia 455 14:00 – 15:40 / 26 October 2011 / Room Suecia / Discussion leader: T.B.A. Inertia for Wind Power Plants – State of the Art Review Year - 2011 P. W. Christensen, G. C. Tarnowski (Vestas Technology, Denmark)

Frequency Activated Fast Power Reserve for Wind Power Plant Delivered from Stored Kinetic Energy in the Wind Turbine Inertia T. Knüppel, P. Thuring, S. Kumar, M. N. Kragelund, R. Nielsen, K. André (Siemens Wind Power, Denmark)

Provision of Frequency Control by Wind Farms M. Speckmann, A. Baier (Fraunhofer IWES, Germany)

The Effects of Different Regulation Strategies on Jiangsu’s Wind Integration L. Hong, H. Lund, B. Möller, C. Wang (Aalborg University, Denmark)

Session 7b: Smart Grid and Wind Power – II 481 14:00 – 15:40 / 26 October 2011 / Room Dania / Discussion leader: T.B.A. Need of Harmonized Generic Model Standards for Flexible Grids in a Smart Future T. Gehlhaar, T. Wehrend (Germanischer Lloyd, Germany), H. Langkowski, D. Schulz (Helmut Schmidt University Hamburg, Germany)

Flexible Plug and Play Low Carbon Networks - Enabling the Connection of Wind Generation C. Marantes, S. Georgiopoulos, G. Manhangwe, D. Openshaw (UK Power Networks, United Kingdom)

Decrease of Wind Power Balancing Costs Due to Smart Charging of Electric Vehicles J. Kiviluoma (VTT, Finland), P. Meibom (Risø DTU, Denmark)

Raising the Accommodation Ceiling for Wind Power by Intelligent Response of Demand and Distributed Generation P. MacDougall (TNO, the Netherlands), C. Warmer (ECN, the Netherlands), K. Kok (TNO, the Netherlands)

Session 7c: Wind Power Plant Aspects 513 14:00 – 15:40 / 26 October 2011 / Room Nortvegia / Discussion leader: T.B.A. Power Quality Monitoring Guideline for Wind Farms Connected to Extra High Voltage Grids S. Rabe, K. Rudion, Z. Styczynski (Otto-von-Guericke-University Magdeburg, Germany), Y. Sassnick, M. Wilhelm (50Hertz Transmission, Germany)

Network Fault Response of Transmission Systems with Active Distribution Systems during Reverse Power Flows J. C. Boemer (TU Delft, the Netherlands/Ecofys, Germany), A. van der Meer, B. G. Rawn (TU Delft, the Netherlands), R. L. Hendriks(TU Delft, the Netherlands/Siemens, Germany), M. Gibescu (TU Delft, the Netherlands), M. van der Meijden (TU Delft/TenneT TSO, the Netherlands), W. Kling (TU Eindhoven, the Netherlands), J. A. Ferreira (TU Delft, the Netherlands)

Land Cable Systems for the Connection of Wind Farms H. Brakelmann, J. Brüggmann (University of Duisburg-Essen, Germany), W. Frisch (IFK, Austria)

Mitigation of Grid Frequency Excursions at Hourly Transitions by Wind Power J. E. S. de Haan, J. Frunt, W. L. Kling (TU Eindhoven, the Netherlands)

Session 8: Closing Session & Podium Discussions 539 16:10 – 17:15 / 26 October 2011 / Room Scandia Ballroom / Discussion leader: TBA

Poster Session Papers 541 Simulated Switching Transients in the External Grid of Walney Offshore Wind Farm I. Arana, D. Johnsen, T. Sørensen (DONG Energy Power, Denmark), J. Holbøll (DTU, Denmark)

Can Weather Radars Help Monitoring and Forecasting Wind Power Fluctuations at Offshore Wind Farms? P.-J. Trombe, P. Pinson, H. Madsen (DTU Informatics, Denmark), N. E. Jensen, L. B. Pedersen (DHI Weather Radar Systems, Denmark), A. Sömmer (Vattenfall, Denmark), N. F. Le (DONG Energy, Denmark)

Grid Frequency Responses of Wind Power Variability and Predictability J. E. S. de Haan, J. Frunt, W. L. Kling (TU Eindhoven, the Netherlands)

The Effect of Wind Integration on Economic Dispatch and CO2 Emissions in a Closed Operated Dutch Power System A. G. Q. de Jong, J. E. S. de Haan, J. Frunt (TU Eindhoven, the Netherlands), E. Pelgrum (TenneT TSO,the Netherlands), W. L. Kling (TU Eindhoven, the Netherlands)

Large-Scale Integration of Wind Power in Integrated Assessment Models O. Balyk, K. Karlsson (Risø DTU, Denmark)

Advanced Extreme and Ramp Event Forecasting and Alarming to Support Stability of Energy Grids H.-P. Waldl, P. Brandt (Overspeed, Germany)

A Study of Offshore Wind HVDC System Stability and Control H. Liu, J. Sun (Rensselaer Polytechnic Institute, USA)

Impedance Modeling and Control of Grid-Parallel Inverters M. Cespedes, J. Sun (Rensselaer Polytechnic Institute, USA)

TWENTIES Project: Wind Power for Wide-area Control of the Grid J. C. Pérez, C. Combarros, D. Rubio, R. Veguillas, M. J. Hermosa (Iberdrola, Spain), I. Egido (IIT Comillas University, Spain)

Possibilities of Applying Wind Farms Oversizing to Increasing Wind Energy Production in a System with Limited Transmission Capacity M. Bajor, R. Jankowski (Institute of Power Engineering Gdansk, Poland)

Improving Real-Time Thermal Ratings Using Computational Wind Simulations D. Greenwood, G. Ingram, P. Taylor (Durham University, United Kingdom), D. Kadar (Scottish Power Energy Networks, United Kingdom), A. Tewkesbury (Astrium Geo-Information Services, United Kingdom)

Wind Power Production Variations in the Swedish Power System F. Carlsson (Vattenfall, Sweden)

Case Study of Coordinated Voltage Control and Network Losses in an Existing Medium Voltage Network with Large Penetration of Wind Power I. Leisse, O. Samuelsson, J. Svensson (Lund University, Sweden)

A Comprehensive Approach to Consider Renewable Energy Integration in the Planning Process of Large Power Systems G. Callegari, D. Canever, D. Provenzano, A Prudenzi (CESI, Italy.)

Control System Structure of Multi-terminal VSC-HVDC Transmission System E. Karatsivos, J. Svensson, O. Samuelsson (Lund University, Sweden)

Rate of Change of Frequency and Frequency Deviation in the Nordic Power System with Increasing Wind Power J. Björnstedt, O. Samuelsson (Lund University, Sweden)

Wind Farms' Influence on Stability in an Area with High Concentration of Hydropower Plants S. Engström, J. Persson, P. Olsson (Vattenfall, Sweden), U. Lundin (Uppsala University, Sweden)

Environmental Severity Classes for Main Electrical Components in Offshore Wind Turbines M. Henriksen (DTU, Denmark), E. Koldby (ABB, Denmark), J. Holbøll, A. Holdyk (DTU, Denmark)

Compatibility Between Electric Components in Wind Farms A. Holdyk, J. Holbøll (DTU, Denmark), I. Arana (DONG Energy, Denmark)

Maximizing Wind Power Integration in Distribution System S. Nursebo Salih, P. Chen, O. Carlson (Chalmers TU, Sweden)

Capacity Optimization of the BC-Alberta Interconnected System: Wind Potential B. Kiani, A. Rowe, P. Wild, L. Pitt, J. Duquette, A. Sopinka, T. Pedersen (University of Victoria, Canada)

The Impact of High Wind Power Penetration on Hydroelectric Unit Operations B.-M. Hodge, D. Lew, M. Milligan (NREL, USA)

Evaluating the Synergies of Renewable Generation and PHEVs E. Ibanez, D. Lew, M. Milligan (NREL, USA), G. Jordan, R. Piwko (GE Energy, USA)

The Value of Wind Forecasting D. Lew (NREL, USA), G. Jordan (Consultant, USA), R. Piwko (GE Energy, USA), M. Milligan (NREL, USA)

New Algorithm for Islanding Detection of Wind Turbines Driven DFIG J. Mirzaei (Monenco Consulting Engineering, Iran), H. Kazemi Kargar (Shahid Beheshti University, Iran)

Electrolysis for Integration of Renewable Electricity and Routes towards Sustainable Fuels M. Mogensen, F. Allebrod, J. R. Bowen, C. Chatzichristodoulou, M. Chen, S. D. Ebbesen, C. Graves, J. Hallinder, A. Hauch, P. V. Hendriksen, P. Holtappels, J. V. T. Høgh, S. H. Jensen, A. Lapina, P. L. Mollerup, X. Sun (Risø DTU, Denmark)

Day Ahead Forecast of Wind Power through Optimal Application of Multivariate Analyzing Methods A. Arnoldt, P. Bretschneider (Fraunhofer IOSB-AST, Germany)

Development of a Flexible Measurement System for Offshore Wind Farm Applications L. Kocewiak, I. Arana, J. Hjerrild, T. Sørensen (DONG Energy, Denmark), C. L. Bak (Aalborg University, Denmark), J. Holbøll (DTU, Denmark)

Topology and Technology Survey on Medium Voltage Power Converters for Large Wind Turbines M. Sztykiel, R. Teodorescu, S. Munk-Nielsen (Aalborg University, Denmark), P. Rodriguez (TU of Catalonia, Spain), L. Helle (Vestas, Denmark), C. Busca (Aalborg University, Denmark)

Analysis of the Statistics of Wind Power Gradients at Off-shore and On-shore Wind Installations H. G. Beyer (University of Agder, Norway)

Market and Wind Integration in the North and Baltic Seas - Potential for Merchant Transmission Investment J. Egerer (TU Berlin, Germany), F. Kunz (TU Dresden, Germany)

Press-pack IGBTs: a Reliable Solution for Medium Voltage Multi-Megawatt Wind Turbine Power Converters

C. Busca, R. Teodorescu, F. Blaabjerg, S. Munk-Nielsen (Aalborg University, Denmark), P. Rodriguez (TU of Catalonia, Spain), L. Helle, T. Abeyasekera (Vestas, Denmark), M. Sztykiel (Aalborg University, Denmark)

Grid-Connection of Offshore Wind Farms Using VSC-HVDC Systems X. Fu, L.-A. Dessaint (École de Technologie Supérieure, Canada), R. Gagnon (IREQ/Hydro-Québec, Canada)

Optimal Combination of Storage and Balancing in a 100% Renewable European Power System M. G. Rasmussen, G. B. Andresen (Aarhus University, Denmark), D. Heide (Johann-Wolfgang-Goethe University Frankfurt, Germany), M. Greiner (Aarhus University, Denmark)

Wind Farm Operation Planning Using Optimal Pitch Angle Pattern (OPAP) N. Moskalenko, K. Rudion (Otto-von-Guericke University Magdeburg, Germany)

Li-Ion Batteries in a Virtual Power Plant (Energy Storage + Wind Power Plant) for Primary Frequency Regulation P. Braun, M. Swierczynski, F. Blaabjerg (Aalborg University, Denmark), P. Rodriguez (TU of Catalonia, Spain), R. Teodorescu (Aalborg University, Denmark)

Dampening Variation in the Northern European Wind Energy Output – Influence of Geographical Location L. Reichenberg, F. Johnsson, M. Odenberger (Chalmers TU, Sweden)

Probabilistic Aspects of Harmonic Emission of Large Offshore Wind Farms C. F. Jensen (Energinet.dk, Denmark), C. L. Bak (Aalborg University, Denmark), J. Hjerrild, L. Kocewiak (Dong Energy, Denmark), K. K. Berthelsen (Aalborg University, Denmark)

Integration of Large Ccale Wind Power Troels Davidsen (Inopower, Denmark)

Harmonic Analysis Experience from a Wind Farm Substation Project in Sweden C. Yu, N. Ullah, J. Höglund, G. Pinares (STRI, Sweden), N. Willemsen, M. Holmberg (ABB, Sweden)

Workshop Participants 711

Workshop Information 719